SIM808 shield is a GSM and GPS plus Bluetooth three-in-one function shield for Peakduino/Arduino. It is based on the latest GSM/GPS/Bluetooth(optional) module SIM808 from SIMCOM, supports GSM/GPRS Quad-Band network and combines GPS technology for satellite navigation.It has high GPS receive sensitivity with 22 tracking and 66 acquisition receiver channels. Besides, it also supports A-GPS that available for indoor localization and bluetooth 3.0.

The GPRS/GSM Shield is configured and controlled via its UART using simple AT commands. Based on the SIM900 module from SIMCOM, it is like a cell phone. Besides the communications features, the GPRS/GSM Shield has 6 GPIOs, 2 PWMs and an ADC.

The module is controlled by AT command via UART and supports 3.3V and 5V logical level.

M2M (Machine 2 Machine) Applicatoions - To transfer control data using SMS or GPRS between two machines located at two different factories.

Remote control of appliances - Send SMS while you are at your office to turn on or off your washing machine at home.

Remote Weather station or a Wireless Sensor Network - Make it with Peakduino and create a sensor node capable of transferring sensor data (like from a weather station - temperature, humidity etc.) to a web server (like pachube.com).

Vehicle Tracking System - Install GPRS+GSM+GPS Shield in your car and publish your location live on the internet. Can be used as a automotive burglar alarm.